China Suppliers Factory Double Bright Finish Cold-Rolled Steel Coil - Mirror Finish (Ra ≤0.3 µm)
Comparison Table
| EN Standard | BAOGANG Standard |
|---|---|
| DC01 | DC01 / BLC |
| DC03 | DC03 / BLD |
| DC04 | DC04 / BUSD |
| DC05 | DC05 / BUFD |
| DC06 | DC06 / BSUFD |
| DC07 | DC07 |
| HC260LA | HC260LA |
| HC300LA | HC300LA |
| HC340LA | HC340LA |
| HC380LA | HC380LA |
| HC420LA | HC420LA |
| HC460LA | HC460LA |
| HC500LA | HC500LA |
| HC180Y | HC180Y |
| HC220Y | HC220Y / B170P1 |
| HC260Y | HC260Y |
| HC180B | HC180B / B180H1 / B180H2 |
| HC220B | HC220B |
| HC260B | HC260B |
| HCT 590X | HC340/590DP |
| HCT 780X | HC420/780DP |
| HCT 980X | HC550/980DP |
| - | HC820/1180DP |
Applications
Key Advantages
Surface Perfection
Laser confocal microscopy detects sub-micron defects (scratch/pit-free).
Coating Readiness
Surface energy ≥38 mN/m ensures flawless PVD/PECVD deposition.
Temper Options
Full-hard to skin-passed tempers for balancing strength and bendability.
Frequently Asked Questions
What is Double Bright Finish on cold-rolled steel coils?
Double Bright Finish refers to an exceptionally smooth, highly reflective surface processed on both sides of the steel coil. It is ideal for high-end decorative and optical applications where surface flaws are unacceptable.
How do EN steel grades compare to BAOGANG standards?
EN grades (such as DC01, DC03, and HC260LA) have direct equivalents in BAOGANG standards (like BLC, BLD, and proprietary designations). They share similar mechanical properties, chemical compositions, and performance attributes.
Why is surface energy of ≥38 mN/m critical for these steel coils?
A surface energy of ≥38 mN/m ensures excellent surface wetting and adhesion properties. This is critical for subsequent coating processes like Physical Vapor Deposition (PVD) or Plasma-Enhanced Chemical Vapor Deposition (PECVD).
What are the typical applications for these products?
Due to their pristine surface quality, they are widely used in decorative architectural facades, premium kitchenware, and optical instrument housings.
Can I get different tempers for customized formability?
Yes, we offer multiple temper options ranging from full-hard to skin-passed tempers, allowing you to achieve the perfect balance between material strength and bendability for your specific manufacturing needs.